Install tomb on mesh images

src/freedombone-image-customise

 	configure_firewall
 	install_avahi
 	install_batman
+	install_tomb
 	install_tox
 	install_web_server
 	install_zeronet

src/freedombone-utils-filesystem

 TOMB_REPO="https://github.com/dyne/Tomb"
 TOMB_COMMIT='c80ebd6d6ed77980eb5b559757e03ea13a29bdd1'
 
+function mesh_install_tomb {
+	chroot ${rootdir} apt-get -y install cryptsetup zsh
+
+	if [ ! -d ${rootdir}/$INSTALL_DIR ]; then
+		mkdir -p ${rootdir}/$INSTALL_DIR
+	fi
+
+	git_clone $TOMB_REPO ${rootdir}/$INSTALL_DIR/tomb
+	cd ${rootdir}/$INSTALL_DIR/tomb
+
+	git checkout $TOMB_COMMIT -b $TOMB_COMMIT
+
+	chroot ${rootdir} /bin/bash -x <<EOF
+cd $INSTALL_DIR/tomb
+make install
+EOF
+	if [ ! -f ${rootdir}/usr/local/bin/tomb ]; then
+		exit 93462
+	fi
+}
+
 function install_tomb {
+	if [ $INSTALLING_MESH ]; then
+		mesh_install_tomb
+		return
+	fi
+
 	function_check set_repo_commit
 	set_repo_commit $INSTALL_DIR/tomb "Tomb commit" "$TOMB_COMMIT" $TOMB_REPO
 
 	if [ ! -d $INSTALL_DIR ]; then
 		mkdir -p $INSTALL_DIR
 	fi
-	cd $INSTALL_DIR
 
-	git_clone $TOMB_REPO tomb
+	git_clone $TOMB_REPO $INSTALL_DIR/tomb
 	cd $INSTALL_DIR/tomb
 
 	git checkout $TOMB_COMMIT -b $TOMB_COMMIT